Question

solve the following find​

Answer 1

$\huge\mathfrak\red{♡answer♡} \: \: ✍$

ANSWER 1. Please look at the pic.. jis pic mea orange colour se answer Likha hai wo hai

Answer 2. please look at the pic.. jis pic mea pink colour se answer likha hai wo hai

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Answer 2

Answer:

$\maltese\:\Large{\underline{\underline{\rm{For\:Question\:1}}}}$

Analysis→

Here the question conveys that a pendulum completes 20 oscillations(vibrations) in 32s. And we've to find the time period of the pendulum.So let's the time period be T, time taken be t and oscillations be o.

Given→

• Number of oscillations=20.
• Time taken=32s

To Find→

Time period of the pendulum.

Answer→

$\large{\underline{\boxed{\leadsto{\rm{Time\:Period=\dfrac{Time\:taken}{No. of\:oscillations}}}}}}$

$\implies\rm{T=\dfrac{t}{o}}$

$\implies\rm{T=\dfrac{32s}{20}}$

$\implies\rm{T=\dfrac{\cancel{32s}}{\cancel{20}}}$

$\implies\rm{T=1.6s}$

${\boxed{\boxed{\implies{\bold{T=1.6s\checkmark}}}}}$

☞ Hence the time period i.e the time taken to complete one oscillation is 1.6 seconds which is the required answer.

$\maltese\:\Large{\underline{\underline{\rm{For\:Question\:2}}}}$

Analysis→

Here the question conveys that Salma takes 15 minutes form her house to reach her school riding a bicycle. And the speed of the bicycle given is 2m/s. And we've to find the total distance between her house and her school. But as the time given is in minutes, so firts we've to convert it into seconds.

$\hookrightarrow\rm{1m=60s}$

$\hookrightarrow\rm{15m=60s\times15}$

$\hookrightarrow\rm{900s}$

Given→

• Speed of bicycle=2m/s
• Time taken=900s

To Find→

Total distance between her house and school.

Answer→

$\large{\underline{\boxed{\leadsto{\rm{Speed=\dfrac{Distance}{Time}}}}}}$

$\implies\rm{s=\dfrac{d}{t}}$

$\implies\rm{d=s\times t}$

$\implies\rm{d=2m/s\times900s}$

$\implies\rm{d=1800m}$

${\boxed{\boxed{\implies{\bold{d=1800m;1.8km\checkmark}}}}}$

☞ Hence the distance between Salma's house and her school is 1800m or 1.8km which is the required answer.

HOPE IT HELPS.